9910 Vogelweide

9910 Vogelweide, provisional designation 3181 T-2, is a stony Koronian asteroid and elongated slow rotator from the outer regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered during the second Palomar–Leiden trojan survey in 1973, and named after German medieval poet Walther von der Vogelweide.

9910 Vogelweide
Orbit of Vogelweide, the inner planets and Jupiter (outermost)
Discovery [1]
Discovered byC. J. van Houten
I. van Houten-G.
T. Gehrels
Discovery sitePalomar Obs.
Discovery date30 September 1973
Designations
(9910) Vogelweide
Named after
Walther von der Vogelweide
(German medieval poet)[2]
3181 T-2 · 2115 T-1
main-belt · Koronis [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc45.36 yr (16,567 days)
Aphelion2.9682 AU
Perihelion2.7757 AU
2.8720 AU
Eccentricity0.0335
4.87 yr (1,778 days)
334.14°
0° 12m 9s / day
Inclination3.3670°
95.188°
304.41°
Physical characteristics
Dimensions4.94 km (calculated)[3]
5.991±0.132 km[4][5]
117.438±2.2900 h (R)[6]
118.905±2.2900 h (S)[6]
0.196±0.026[4][5]
0.24 (assumed)[3]
S [3]
13.47±0.29[7] · 13.5[4] · 13.7[1][3] · 13.797±0.004 (R)[6] · 14.370±0.004 (S)[6]

    Discovery

    Vogelweide was discovered on 30 September 1973, by the Dutch astronomers Ingrid and Cornelis van Houten, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in California, United States.[8]

    It was first observed as 2115 T-1 at the discovering Palomar Observatory during the first Trojan survey in March 1971, extending the body's observation arc by more than 2 years prior to its official discovery observation.[8]

    Trojan survey

    The survey designation "T-2" stands for the second Palomar–Leiden Trojan survey, named after the fruitful collaboration of the Palomar and Leiden Observatory in the 1960s and 1970s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand minor planets.[9]

    Classification and orbit

    Vogelweide is a stony asteroid and member of the Koronis family, a group consisting of few hundred known bodies with nearly ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.8–3.0 AU once every 4 years and 10 months (1,778 days). Its orbit has an eccentricity of 0.03 and an inclination of 3° with respect to the ecliptic.[1]

    Physical characteristics

    Slow rotator

    In September 2012, two rotational lightcurves of Vogelweide were obtained from photometric observations at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 117.438 and 118.905 hours with a brightness variation of 0.74 and 0.67 magnitude in the R and S-band, respectively (U=2/2).[6] Vogelweide is a slow rotator, as most asteroids have spin rates of less than 20 hours. The relatively high brightness amplitude also indicates that the body has a non-spheroidal shape.

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Vogelweide measures 5.991 kilometers in diameter and its surface has an albedo of 0.196.[4][5] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony Koronian asteroids of 0.24 and derives a diameter of 4.94 kilometers with an absolute magnitude of 13.7.[3]

    Naming

    This minor planet was named for Walther von der Vogelweide (c. 1170 – c. 1230) a German minstrel of the 13th century and popular lyric poet of Middle High German.[2] The approved naming citation was published by the Minor Planet Center on 2 April 1999 (M.P.C. 34356).[10]

    gollark: If mgollark² is to occur, I would probably construct them by using Google Colab to obtain fast TPUs for training, then somehow having you download the 12GB of bee neuron data to something connected to this "coral TPU".
    gollark: Not practical. For mgollark I just harvested some free Google computing power.
    gollark: https://github.com/EleutherAI/gpt-neo seems to mention TPU support, although it wants high-powered "cloud" ones for training, no idea what it needs for inferencing.
    gollark: Wait, you have a TPU, right citrons?
    gollark: I was investigating GPT-3-ous mgollark, but this would use even *more* time unless I get a TPU somehow.

    References
    1. "JPL Small-Body Database Browser: 9910 Vogelweide (3181 T-2)" (2016-08-01 last obs.). Jet Propulsion Laboratory. Retrieved 23 June 2017.
    2. Schmadel, Lutz D. (2007). "(9910) Vogelweide". Dictionary of Minor Planet Names – (9910) Vogelweide. Springer Berlin Heidelberg. p. 713. doi:10.1007/978-3-540-29925-7_7749. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (9910) Vogelweide". Asteroid Lightcurve Database (LCDB). Retrieved 23 June 2017.
    4. Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
    5. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 23 June 2017.
    6. Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 23 June 2017.
    7. Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 23 June 2017.
    8. "9910 Vogelweide (3181 T-2)". Minor Planet Center. Retrieved 23 June 2017.
    9. "Minor Planet Discoverers". Minor Planet Center. 24 April 2016. Retrieved 23 June 2017.
    10. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 23 June 2017.

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.